linux-kernel - Re: [PATCH v2 2/3] phy: qualcomm: phy-qcom-eusb2-repeater: Add squelch detect param update

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Message-ID: <65efffcc-195d-41c9-953c-e3f6c0b0ed5d@oss.qualcomm.com>
Date: Mon, 8 Dec 2025 13:54:26 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Krishna Kurapati <krishna.kurapati@....qualcomm.com>
Cc: linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Luca Weiss
 <luca.weiss@...rphone.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Johan Hovold <johan+linaro@...nel.org>,
        Pengyu Luo <mitltlatltl@...il.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/3] phy: qualcomm: phy-qcom-eusb2-repeater: Add
 squelch detect param update

On 12/6/25 5:12 PM, Krishna Kurapati wrote:
> 
> 
> On 12/5/2025 7:01 PM, Konrad Dybcio wrote:
>> On 12/4/25 5:46 AM, Krishna Kurapati wrote:
>>> Add support for overriding Squelch Detect parameter.
>>>
>>> Signed-off-by: Krishna Kurapati <krishna.kurapati@....qualcomm.com>
>>> ---
>>>   .../phy/qualcomm/phy-qcom-eusb2-repeater.c    | 22 +++++++++++++++++++
>>>   1 file changed, 22 insertions(+)
>>>
>>> diff --git a/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c b/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
>>> index 651a12b59bc8..a75b37d4e16d 100644
>>> --- a/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
>>> +++ b/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
>>> @@ -37,6 +37,17 @@
>>>   #define EUSB2_TUNE_EUSB_EQU        0x5A
>>>   #define EUSB2_TUNE_EUSB_HS_COMP_CUR    0x5B
>>>   +static const int squelch_detector[] = {
>>> +    [0] = -6000,
>>> +    [1] = -5000,
>>> +    [2] = -4000,
>>> +    [3] = -3000,
>>> +    [4] = -2000,
>>> +    [5] = -1000,
>>> +    [6] = 0,
>>> +    [7] = 1000,
>>> +};
>>
>> I forgot to ask, do these values apply to all of the supported repeaters?
>>
> 
> I checked smb2360/pmih010x_eusb2_repeater and pm8550b repeaters (SM8{5/6/7}50/ Kaanapali/ Hamoa). For all of them, the above table is same.

Thanks

Konrad